Own functions question

Anon

Hi,
I would like to know how do I write my own functions and upload it in a file like functions.php to include it in a number of diferent pages.

Anon

How to write functions? check out the manual.
How to include your functions library in a script: use include().

But be carefull not to make your function library too big, because all of the file gets parsed for spelling mistakes etc, including all the functions that you do not use. This could slow down the startup of your script.

Anon

Agreed about keeping include files short (I try to keep them under 10k no matter what).

To help, try naming each include file after one small set of functions, like database.inc or strings.inc. It's better to have three or five different includes you CAN use, then one big one you HAVE to use.

Anon

True and false, sometimes the file IO overhead is actually more than the script parsing overhead, believe it or not -- this is generally only true when you're including quite a few files -- still..

All my applications (web based or not) are modular (broken into small pieces, most things abstracted )-- it's flat out the best way to code in my opinion...

Anon

Very true.

My biggest app is now around 110kB of code, all in one file because this app need speed a lot more than portability.
It doesn't do very much at a time, but it can do a lot of seperate things.
Mean execution time is under 0.01 seconds on a p300 linux.

I tried putting some functions into a single include file, but that slowed things up quite a bit. It was mainly the IO that was slow because the microtime measurements for the code itself remained the same.